X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.100] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 900197 for flyrotary@lancaironline.net; Wed, 20 Apr 2005 16:50:05 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.res.rr.com [24.74.185.127]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j3KKnHLw011028 for ; Wed, 20 Apr 2005 16:49:18 -0400 (EDT) Message-ID: <005301c545ea$6e6517f0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: New Rotors! Date: Wed, 20 Apr 2005 16:49:22 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0050_01C545C8.E717F590" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0050_01C545C8.E717F590 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable It takes a big hammer, Finn. But they will fit {:>). Kidding of course, = however, both Rusty and I measure new rotor apex slots and came in with = 1.98 - 1.99 mm. I will measure the apex seal tonight when I start = putting the rotors together - perhaps we are not getting our moneys = worth?. Ed ----- Original Message -----=20 From: Finn Lassen=20 To: Rotary motors in aircraft=20 Sent: Wednesday, April 20, 2005 10:27 AM Subject: [FlyRotary] Re: New Rotors! Those numbers do not make sense. Aren't the seal 2 mm? How will they = fit in a 1.778mm groove? Finn Ed Anderson wrote: Got the new rotors today - first time I've ever seen a new rotor - = the are bright metallic {:>).=20 The depth of the apex seal slot on the new rotors ranged from 9.65mm = to 9.77 mm. Interestingly the width of the bottom of the apex slot was = 1.88mm but the top was narrower at 1.778mm. I noticed that the lip of = the apex seal slot had a tiny burr of metal along it as if they were not = using a sharp enough tool or else pushing it along too fast. Or perhaps = no one took the time to deburr the slot. Just in case any of you ever wonder whether you are looking at a = 9.7:1 rotor or some other rotor, there is a fairly easy way to tell. = Lay a straight edge across the depression in the rotor and measure from = its bottom to the center of the depression, it should measure right at 4 = mm. The 9.1 measure around 7mm for comparison. Just thought you might = want to know. Ed Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com ------=_NextPart_000_0050_01C545C8.E717F590 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
It takes a big hammer, Finn. But they = will fit=20 {:>).  Kidding of course, however,  both Rusty and I = measure new=20 rotor apex slots and came in with 1.98 - 1.99 mm.  I will measure = the apex=20 seal tonight when I start putting the rotors together - perhaps we are = not=20 getting our moneys worth?.
 
Ed
----- Original Message -----
From:=20 Finn=20 Lassen
Sent: Wednesday, April 20, 2005 = 10:27=20 AM
Subject: [FlyRotary] Re: New=20 Rotors!

Those numbers do not make sense. Aren't the seal  = 2 mm?=20 How will they fit in a 1.778mm groove?

Finn

Ed Anderson=20 wrote:
Got the new rotors today - first = time I've ever=20 seen a new rotor - the are bright metallic = {:>). 
 
The = depth of the apex=20 seal slot on the new rotors ranged from 9.65mm to 9.77 mm. =20 Interestingly the width of the bottom of the apex slot was 1.88mm = but the=20 top was narrower at 1.778mm.  I noticed that the lip of the = apex seal=20 slot had a tiny burr of metal along it as if they were not using a = sharp=20 enough tool or else pushing it along too fast.  Or perhaps no = one took=20 the time to deburr the slot.
 
Just in case any of you ever wonder = whether you=20 are looking at a 9.7:1 rotor or some other rotor, there is a fairly = easy way=20 to tell.  Lay a straight edge across the depression in the = rotor and=20 measure from its bottom to the center of the depression, it should = measure=20 right at 4 mm.  The 9.1 measure around 7mm for = comparison.  Just=20 thought you might want to know.
 
Ed
 
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.com
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